Home / 19,955.28-29,943.36-12,933.51

Finding the Fourth Proportional to 19,955.28, 29,943.36 and 12,933.51

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Solution

The fourth proportional to 19,955.28, 29,943.36 and 12,933.51 is: 19,407.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.28 : 29,943.36 = 12,933.51 : x
  2. Step 2: Convert to fraction form
    19,955.28/29,943.36 = 12,933.51/x
  3. Step 3: Cross multiply
    19,955.28x = 29,943.36 × 12,933.51
  4. Step 4: Simplify right side
    19,955.28x = 387,272,745.99
  5. Step 5: Solve for x
    x = 387,272,745.99/19,955.28
  6. Step 6: Final answer
    x = 19,407.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.